277+168=
8﹣1.8=
2.5×8=
6.3÷ =
33×5.98≈
9+1÷10=
7÷0.01=
0.52﹣0.08=
=
5÷1%﹣5=
8×12.5%=
÷ =
9﹣0.54=
0.68+ +0.32=
8.8÷0.02=
﹣ =
×5.6=
3+ ﹣3+ =
15×60= 640÷40= ÷ = 398÷202≈ 6.9÷0.1=
1.05-0.65= 0.8×125%= 5- = ÷6= 910-430=
2+15%=
3+=
2÷1%=
125×8=
×=
6.9﹣1.4=
×3=
÷=
46+25= 840÷60= 0.25×8= 2﹣= 4÷12=
15×20= ÷= 1×= 80×110%= 401÷50≈
2.5×4= ×= ÷= ﹣0.25=
﹣= 1﹣﹣= 1÷20%= 80%×=
3.1+0.4= += 640÷16= ×3×4=
10÷= ×= 2.4×= 25×40%=